CVE-2008-0036 in QuickTime
Summary
by MITRE
Buffer overflow in Apple QuickTime before 7.4 allows remote attackers to execute arbitrary code via a crafted compressed PICT image, which triggers the overflow during decoding.
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Analysis
by VulDB Data Team • 08/03/2019
The vulnerability identified as CVE-2008-0036 represents a critical buffer overflow flaw in Apple QuickTime software versions prior to 7.4. This security weakness resides within the decompression handling mechanism of the PICT image format, which is a proprietary image format developed by Apple. The vulnerability manifests when QuickTime processes a specially crafted compressed PICT image, triggering an exploitable buffer overflow condition during the decoding process. The flaw is particularly dangerous because it enables remote code execution, meaning attackers can exploit this vulnerability without requiring local system access, making it a significant concern for widespread deployment.
The technical implementation of this vulnerability follows the classic buffer overflow pattern where insufficient bounds checking occurs during the decompression of compressed image data. When QuickTime encounters a malformed PICT image structure, the decompression routine fails to properly validate the size of data being written to internal buffers, resulting in memory corruption that can be leveraged by malicious actors. This specific implementation falls under CWE-121, which describes heap-based buffer overflow conditions, and potentially CWE-125, which covers out-of-bounds read vulnerabilities. The attack vector is classified as remote, as the vulnerability can be triggered through network-based delivery mechanisms such as web pages, email attachments, or file sharing systems where QuickTime is installed.
The operational impact of CVE-2008-0036 extends far beyond simple exploitation, as it provides attackers with complete system compromise capabilities. Once successfully exploited, the buffer overflow allows remote attackers to execute arbitrary code with the privileges of the QuickTime process, which typically runs with user-level permissions but can potentially be escalated. The vulnerability affects a wide range of Apple systems including macOS and Windows platforms where QuickTime is installed, making it particularly dangerous in enterprise environments where multiple systems may be exposed. According to ATT&CK framework, this vulnerability maps to T1059.007 for command and scripting interpreter and T1068 for exploit for privilege escalation, as attackers can leverage the initial foothold to gain deeper system access.
Mitigation strategies for this vulnerability require immediate patching of affected QuickTime installations to version 7.4 or later, which includes proper bounds checking and memory management improvements. Organizations should implement network segmentation and access controls to limit exposure to potentially compromised systems, while also deploying intrusion detection systems that can identify suspicious network traffic patterns associated with exploitation attempts. Security monitoring should focus on detecting unusual QuickTime process behavior and memory access patterns that might indicate exploitation activity. Additionally, user education regarding the dangers of opening untrusted image files and the importance of keeping software updated remains crucial, as social engineering tactics often accompany such exploits. The vulnerability highlights the importance of proper input validation and memory safety practices in multimedia processing libraries, serving as a reminder of the critical nature of secure coding standards in widely deployed software components.